'Dross' in the Bible

You have removed all the wicked of the earth like dross;Therefore I love Your testimonies.

Take away the dross from the silver,And there comes out a vessel for the smith;

Like an earthen vessel overlaid with silver drossAre burning lips and a wicked heart.

Your silver has become dross,Your drink diluted with water.

“I will also turn My hand against you,And will smelt away your dross as with lyeAnd will remove all your alloy.

“Son of man, the house of Israel has become dross to Me; all of them are bronze and tin and iron and lead in the furnace; they are the dross of silver.

Therefore, thus says the Lord God, ‘Because all of you have become dross, therefore, behold, I am going to gather you into the midst of Jerusalem.